package controller;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/Logout")
public class LogoutServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    public LogoutServlet() {
        super();
    }

	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doLogout(request, response);
	}

	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doLogout(request, response);
	}
	
	private void doLogout(HttpServletRequest req, HttpServletResponse res) {
		if ( req.getSession(true).getAttribute("user") != null ) {
			req.getSession(true).invalidate();
		}
		
		try {
			res.sendRedirect("Login");
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

}
